The ‘planets’ rotate according to their actual solar years: Mercury goes round every 88 days, Venus: every 224 days, Earth: every 365 days, Mars: every 687 days, Jupiter: every 12 years and Saturn: every 29 years.

Uranus and Neptune are excluded because they take so long (84 and 164 years respectively) to orbit the sun, they would appear stationary on the dial.

Choose your lucky day and the Earth will align with the painted star to signify it.